(19)

(11)

EP 0 026 199 A1

(12)

(43) Date of publication: 08.04.1981 Bulletin 1981/14 (21) Application number: 80900684.0 (22) Date of filing: 02.04.1980

(51) International Patent Classification (IPC):  E04H 12/ 22( . ) E01F 9/ 018( . ) E01F 9/ 012( . ) (86) International application number: PCT/SE1980/000095 (87) International publication number: WO 1980/002167 (16.10.1980 Gazette 1980/23)

(84) Designated Contracting States: FR (30) Priority: 06.04.1979 SE 19790003074 (71) Applicant: MIENK AB S-42107 Västra Frölunda (SE)	(72) Inventor: BITVAI, Tivadar S-436 00 Askim (SE) (74) Representative: Kedinger, Jean-Paul, et al  c/o Cabinet Malemont 42, avenue du Président Wilson F-75116 Paris F-75116 Paris (FR)